WCMT040202-FM4 WSM20S WSM20S Wendeplatten - Walter Tools

Benefit from the combination of Tiger‑tec Silver coating, FM4 chipbreaker and Trigon 80° geometry for secure machining of stainless steels and superalloys. Order the WCMT040202-FM4 WSM20S insert directly via Metav Werkzeuge or consult our specialists if required.

WCMT040202-FM4 WSM20S Trigon 80° indexable insert — Tiger‑tec Silver by Walter Tools

A high-performance WCMT040202-FM4 WSM20S trigon indexable insert engineered for reliable cutting in stainless steels and heat-resistant superalloys.

• Tiger‑tec Silver coated carbide grade WSM20S
• Trigon 80° insert for stable engagement
• 0.2 mm corner radius for precise profile
• Optimised FM4 chipbreaker for stainless steel

Proven performance for demanding materials

The Tiger‑tec Silver WSM20S grade combines a hard, wear‑resistant coating with a robust carbide substrate to handle the specific challenges of stainless steels and heat‑resistant superalloys. These materials generate high temperatures at the cutting edge and are prone to workhardening; the chosen grade promotes stable chip formation and reduces the incidence of built‑up edge. The Trigon 80° format provides a positive cutting geometry with broad engagement, improving process stability in interrupted cuts and plunge operations while maintaining a compact insert footprint.

Consistent edge life and optimised chip control

A carefully matched combination of FM4 chipbreaker and a 0.2 mm corner radius yields reproducible surface quality and reliable edge integrity over longer tool life. The 7° clearance angle reduces rubbing and facilitates shear‑dominant cutting, which in turn lowers cutting forces and thermal load on the cutting edge. For production environments this means fewer insert changes, reduced scrap risk and improved cycle‑time predictability — clear gains in throughput and machining economy.

Geometry and grade that simplify process planning

The Trigon 80° insert form supports both roughing and finishing passes depending on depth of cut and feed, enabling flexible process windows with the same insert family. The WCMT040202-FM4 format and 02 thickness provide a compact, rigid package that suits small to medium diameter tools and holders commonly used in precision components. Selection becomes straightforward when balancing surface finish requirements and productivity targets: choosing this insert streamlines tooling lists and supports repeatable setups across batches.

Suitable applications and typical user scenarios

Designed for job shops and production facilities working in sectors such as medical, aerospace and energy, the insert is particularly effective where a combination of heat resistance and edge stability is required. Typical use cases include finishing and semi‑finishing of shafts and housings in stainless steels, as well as interrupted or continuous operations in nickel‑base superalloys. The robust coated carbide grade helps maintain dimensional accuracy over longer runs, supporting leaner inventories and fewer tool interventions.

For tailored machining recommendations on Walter Tools’ Tiger‑tec Silver grade and to discuss the WCMT040202-FM4 WSM20S insert for specific applications, contact Metav Werkzeuge by email at info@metav-werkzeuge.com or by phone on +49 2822 7131930 for expert advice and rapid delivery options

Technical Data

• Article number: WCMT040202-FM4-WSM20S-WALTER
• SKU: WCMT040202-FM4 WSM20S
• Brand: Walter Tools
• Series: Tiger‑tec Silver

Facts

• Clearance angle: 7°
• Corner radius: 0.2 mm
• Insert form: Trigon 80°
• Insert size: 04
• Thickness: 02
• Grade/sort: WSM20S
• Chipbreaker: FM4
• Execution: T
• Tolerance class: M

Special features

• Coating technology: Tiger‑tec Silver
• Substrate: Coated carbide
• Suitable for: stainless steels (M)
• Suitable for: heat‑resistant superalloys and titanium (S)
• Application focus: stable chip formation and edge integrity
• Typical use: turning, plunge and interrupted cuts

FAQ

What materials is this insert best suited for? The WCMT040202-FM4 WSM20S insert is optimised for stainless steels (M) and heat‑resistant superalloys or titanium (S), using the Tiger‑tec Silver grade to support stable cutting in adhesive and high‑temperature conditions.

How does the FM4 chipbreaker affect surface finish? The FM4 chipbreaker promotes controlled chip formation and evacuation, which helps maintain a consistent surface finish while reducing the risk of chip re‑cutting when machining stainless steels and similar alloys.

Can the Trigon 80° geometry be used for both roughing and finishing? Yes. The Trigon 80° form, combined with the 0.2 mm corner radius and the WSM20S grade, provides a balance that allows both semi‑finishing and finishing passes depending on cutting parameters and toolholder rigidity.

What distinguishes Tiger‑tec Silver WSM20S from standard carbide grades? Tiger‑tec Silver WSM20S uses a tailored coating process to improve heat resistance and wear performance in challenging materials, delivering longer edge life and fewer insert changes compared with conventional uncoated or basic coated grades.

Manufacturer / Responsible: Walter Deutschland GmbH; Derendinger Straße 53; 72072 Tübingen; Germany

Trademarks and trade names are the property of their respective owners. Markennamen and protected product names are mentioned only for clarification and there is no affiliation between our company and the referenced brands. The offered article is an original, factory‑new product from the manufacturer.